MCQOPTIONS
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| 1. |
A ball of mass m moving with velocity V, makes a head on elastic collision with a ball of the same mass moving with velocity 2V towards it. Taking direction of V as positive velocities of the two balls after collision are [MP PMT 2002] |
| A. | \[-V\] and \[2V\] |
| B. | \[2V\]and \[-V\] |
| C. | V and\[-2V\] |
| D. | \[-2V\] and \[V\] |
| Answer» E. | |